"The great filter" is a idea that poses the idea that there is a limit to the intelligence of a species before it destroys itself. Sewing the seeds of their own demise, the species does not pass the titular filter. One time, I asked my dad if he knew what "titular" meant and he said "I don't know, but he sounds like a real boob!"
The reason I bring up The Great Filter is because a lot of people like to muse about "what if humanity is on its way there (likely because of phone) (bad). However, it would seem that The Great Filter has already arrived, just in an... unexpected form.
The reason I bring up my dad is because it's kind of funny.